/*
 * Copyright (C) 2007-2012 by XDEV Software, All Rights Reserved.
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License version 3.0 as published by the Free Software Foundation.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 */
 
package xdev.db.sql;


import xdev.lang.NotNull;


/**
 * Abstract supertype of all SQL objects.
 * <p>
 * <strong>This class is not intended to be subclassed by the user.</strong>
 * </p>
 * 
 * 
 * @author XDEV Software
 * 
 */
public abstract class SqlObject
{
	abstract @NotNull
	Object delegate();
	

	/**
	 * {@inheritDoc}
	 */
	@Override
	public String toString()
	{
		return delegate().toString();
	}
	

	static Object expose(Object obj)
	{
		if(obj instanceof SqlObject)
		{
			return ((SqlObject)obj).delegate();
		}
		
		return obj;
	}
	

	static Object[] expose(Object... objects)
	{
		if(objects == null)
		{
			return null;
		}
		
		int c = objects.length;
		Object[] exposed = new Object[c];
		for(int i = 0; i < c; i++)
		{
			exposed[i] = expose(objects[i]);
		}
		return exposed;
	}
}
